1. There is plenty of room for the start menu items to live in the LH sidebar, rather than to have to call them up every time. Ditto the hidden magnification/zoom options.
2. Most srart menu items have various options - which you then have to choose between. e.g. save has both 'save' and 'save to gallery'. It should be possible to have a default option for clicking on the icon. With save e.g. this could save the edited file to a pre-selected Pixo output folder. Ditto send, print, open.
Beyond that: with it not possible to resize the window (!), it's harder than it should be to work with other programs.
Strangely, the start screen tells me I can drag my picture(s) in - but only the last one shows. So no chance of batch processing then. Shame.